31228713

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 47779200

約数和(自身を除く): 16550487

約数列:

[1, 3, 9, 27, 53, 139, 157, 159, 417, 471, 477, 1251, 1413, 1431, 3753, 4239, 7367, 8321, 21823, 22101, 24963, 65469, 66303, 74889, 196407, 198909, 224667, 589221, 1156619, 3469857, 10409571, 31228713]

約数ペア:

[(1, 31228713), (3, 10409571), (9, 3469857), (27, 1156619), (53, 589221), (139, 224667), (157, 198909), (159, 196407), (417, 74889), (471, 66303), (477, 65469), (1251, 24963), (1413, 22101), (1431, 21823), (3753, 8321), (4239, 7367)]